EP3933058A4 - Verfahren zur wiedergewinnung von wolfram - Google Patents

Verfahren zur wiedergewinnung von wolfram Download PDF

Info

Publication number
EP3933058A4
EP3933058A4 EP20762479.2A EP20762479A EP3933058A4 EP 3933058 A4 EP3933058 A4 EP 3933058A4 EP 20762479 A EP20762479 A EP 20762479A EP 3933058 A4 EP3933058 A4 EP 3933058A4
Authority
EP
European Patent Office
Prior art keywords
recovery method
tungsten recovery
tungsten
recovery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20762479.2A
Other languages
English (en)
French (fr)
Other versions
EP3933058A1 (de
Inventor
Daisuke Haraguchi
Junji Abe
Yuuki NAGAI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Materials Corp
Japan New Metals Co Ltd
Original Assignee
Mitsubishi Materials Corp
Japan New Metals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Materials Corp, Japan New Metals Co Ltd filed Critical Mitsubishi Materials Corp
Publication of EP3933058A1 publication Critical patent/EP3933058A1/de
Publication of EP3933058A4 publication Critical patent/EP3933058A4/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/36—Obtaining tungsten
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/008—Wet processes by an alkaline or ammoniacal leaching
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Sludge (AREA)
EP20762479.2A 2019-02-25 2020-01-15 Verfahren zur wiedergewinnung von wolfram Pending EP3933058A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019032167A JP7206009B2 (ja) 2019-02-25 2019-02-25 タングステンの回収方法
PCT/JP2020/001010 WO2020174907A1 (ja) 2019-02-25 2020-01-15 タングステンの回収方法

Publications (2)

Publication Number Publication Date
EP3933058A1 EP3933058A1 (de) 2022-01-05
EP3933058A4 true EP3933058A4 (de) 2023-03-22

Family

ID=72239292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20762479.2A Pending EP3933058A4 (de) 2019-02-25 2020-01-15 Verfahren zur wiedergewinnung von wolfram

Country Status (5)

Country Link
US (1) US20220136082A1 (de)
EP (1) EP3933058A4 (de)
JP (1) JP7206009B2 (de)
CN (1) CN113454248A (de)
WO (1) WO2020174907A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114921649B (zh) * 2022-03-22 2023-11-10 湖北绿钨资源循环有限公司 一种回收含钨废料中可溶性钨酸盐的方法
CN115072927B (zh) * 2022-08-01 2023-06-09 中南大学 一种从钨冶炼废水中回收钨的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839160B1 (de) * 1969-03-17 1973-11-21
US4325919A (en) * 1981-01-19 1982-04-20 Amax Inc. Autoclave soda digestion of scheelite concentrates with feedback control
EP2450312A1 (de) * 2010-11-03 2012-05-09 Montanuniversität Leoben Rückgewinnung von Wolfram aus Abfallmaterial mittels Ammoniumauslaugung
JP5344170B2 (ja) * 2009-08-28 2013-11-20 三菱マテリアル株式会社 タングステンの回収処理方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5344154B2 (de) 1973-12-28 1978-11-27
JPS5168610A (ja) 1974-12-11 1976-06-14 Tanto Kk Ototsusoshokumoyoojusurutairuno seikeihoho
US4320095A (en) * 1981-01-19 1982-03-16 Amax Inc. Autoclave soda digestion of refractory scheelite concentrates
US4351808A (en) * 1981-01-19 1982-09-28 Amax Inc. Autoclave soda digestion of scheelite concentrates
US4508701A (en) * 1983-03-31 1985-04-02 Union Carbide Corporation Extraction of tungsten from spent or scrap catalyst materials
JP2004002927A (ja) * 2002-05-31 2004-01-08 Mitsui Mining & Smelting Co Ltd 超硬質合金スクラップの処理方法
JP6143417B2 (ja) * 2012-02-01 2017-06-07 Ｊｘ金属株式会社 タングステンの製造方法
RU2504592C1 (ru) * 2012-11-19 2014-01-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Способ получения вольфрамата натрия
JP2016089219A (ja) 2014-11-05 2016-05-23 日清鋼業株式会社 タングステンの回収方法
CN104372169B (zh) * 2014-12-04 2017-02-22 中南大学 一种从高钡钨矿中提取钨的方法
JP6935265B2 (ja) 2017-08-04 2021-09-15 日置電機株式会社 波形表示装置および波形表示用プログラム
CN108754123B (zh) * 2018-06-22 2019-10-15 中南大学 一种处理白钨矿的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839160B1 (de) * 1969-03-17 1973-11-21
US4325919A (en) * 1981-01-19 1982-04-20 Amax Inc. Autoclave soda digestion of scheelite concentrates with feedback control
JP5344170B2 (ja) * 2009-08-28 2013-11-20 三菱マテリアル株式会社 タングステンの回収処理方法
EP2450312A1 (de) * 2010-11-03 2012-05-09 Montanuniversität Leoben Rückgewinnung von Wolfram aus Abfallmaterial mittels Ammoniumauslaugung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020174907A1 *

Also Published As

Publication number Publication date
EP3933058A1 (de) 2022-01-05
WO2020174907A1 (ja) 2020-09-03
CN113454248A (zh) 2021-09-28
US20220136082A1 (en) 2022-05-05
JP2020132989A (ja) 2020-08-31
JP7206009B2 (ja) 2023-01-17

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DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: NAGAI, YUUKI

Inventor name: ABE, JUNJI

Inventor name: HARAGUCHI, DAISUKE

A4 Supplementary search report drawn up and despatched

Effective date: 20230216

RIC1 Information provided on ipc code assigned before grant

Ipc: C22B 3/12 20060101ALI20230210BHEP

Ipc: C22B 34/36 20060101ALI20230210BHEP

Ipc: C22B 7/00 20060101AFI20230210BHEP